./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product40_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_11d1d7e9-c2e8-4d92-8791-f999d865c7bb/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_11d1d7e9-c2e8-4d92-8791-f999d865c7bb/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_11d1d7e9-c2e8-4d92-8791-f999d865c7bb/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_11d1d7e9-c2e8-4d92-8791-f999d865c7bb/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product40_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_11d1d7e9-c2e8-4d92-8791-f999d865c7bb/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_11d1d7e9-c2e8-4d92-8791-f999d865c7bb/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 420052417c34af57247f22c0bc8935a6e484860c ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:40:11,634 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:40:11,635 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:40:11,642 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:40:11,642 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:40:11,643 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:40:11,644 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:40:11,645 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:40:11,646 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:40:11,647 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:40:11,648 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:40:11,648 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:40:11,649 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:40:11,649 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:40:11,650 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:40:11,650 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:40:11,651 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:40:11,652 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:40:11,653 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:40:11,654 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:40:11,655 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:40:11,656 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:40:11,658 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:40:11,658 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:40:11,658 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:40:11,659 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:40:11,660 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:40:11,661 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:40:11,661 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:40:11,662 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:40:11,662 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:40:11,663 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:40:11,663 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:40:11,663 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:40:11,664 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:40:11,664 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:40:11,664 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_11d1d7e9-c2e8-4d92-8791-f999d865c7bb/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 12:40:11,674 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:40:11,674 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:40:11,675 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:40:11,675 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:40:11,675 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:40:11,675 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 12:40:11,676 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 12:40:11,676 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 12:40:11,676 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 12:40:11,676 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 12:40:11,676 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 12:40:11,676 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:40:11,676 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:40:11,677 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:40:11,677 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:40:11,677 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:40:11,679 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:40:11,679 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 12:40:11,679 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 12:40:11,679 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 12:40:11,679 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:40:11,679 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:40:11,679 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 12:40:11,680 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:40:11,680 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 12:40:11,680 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:40:11,680 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:40:11,680 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 12:40:11,680 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:40:11,681 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:40:11,681 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 12:40:11,681 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 12:40:11,682 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_11d1d7e9-c2e8-4d92-8791-f999d865c7bb/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 420052417c34af57247f22c0bc8935a6e484860c [2018-11-28 12:40:11,706 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:40:11,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:40:11,718 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:40:11,719 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:40:11,719 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:40:11,720 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_11d1d7e9-c2e8-4d92-8791-f999d865c7bb/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product40_true-unreach-call_false-termination.cil.c [2018-11-28 12:40:11,760 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_11d1d7e9-c2e8-4d92-8791-f999d865c7bb/bin-2019/uautomizer/data/e65c7db63/407f96679c2941a990227f557327c0ba/FLAG07e1c37a0 [2018-11-28 12:40:12,195 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:40:12,195 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_11d1d7e9-c2e8-4d92-8791-f999d865c7bb/sv-benchmarks/c/product-lines/minepump_spec5_product40_true-unreach-call_false-termination.cil.c [2018-11-28 12:40:12,202 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_11d1d7e9-c2e8-4d92-8791-f999d865c7bb/bin-2019/uautomizer/data/e65c7db63/407f96679c2941a990227f557327c0ba/FLAG07e1c37a0 [2018-11-28 12:40:12,214 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_11d1d7e9-c2e8-4d92-8791-f999d865c7bb/bin-2019/uautomizer/data/e65c7db63/407f96679c2941a990227f557327c0ba [2018-11-28 12:40:12,217 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:40:12,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:40:12,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:40:12,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:40:12,222 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:40:12,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:40:12" (1/1) ... [2018-11-28 12:40:12,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@246385e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:12, skipping insertion in model container [2018-11-28 12:40:12,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:40:12" (1/1) ... [2018-11-28 12:40:12,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:40:12,261 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:40:12,454 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:40:12,519 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:40:12,577 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:40:12,595 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:40:12,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:12 WrapperNode [2018-11-28 12:40:12,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:40:12,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:40:12,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:40:12,596 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:40:12,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:12" (1/1) ... [2018-11-28 12:40:12,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:12" (1/1) ... [2018-11-28 12:40:12,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:40:12,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:40:12,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:40:12,643 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:40:12,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:12" (1/1) ... [2018-11-28 12:40:12,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:12" (1/1) ... [2018-11-28 12:40:12,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:12" (1/1) ... [2018-11-28 12:40:12,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:12" (1/1) ... [2018-11-28 12:40:12,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:12" (1/1) ... [2018-11-28 12:40:12,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:12" (1/1) ... [2018-11-28 12:40:12,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:12" (1/1) ... [2018-11-28 12:40:12,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:40:12,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:40:12,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:40:12,673 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:40:12,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_11d1d7e9-c2e8-4d92-8791-f999d865c7bb/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:40:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:40:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 12:40:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:40:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:40:13,260 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:40:13,260 INFO L280 CfgBuilder]: Removed 176 assue(true) statements. [2018-11-28 12:40:13,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:40:13 BoogieIcfgContainer [2018-11-28 12:40:13,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:40:13,261 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 12:40:13,261 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 12:40:13,264 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 12:40:13,264 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:40:13,265 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 12:40:12" (1/3) ... [2018-11-28 12:40:13,266 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b247ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:40:13, skipping insertion in model container [2018-11-28 12:40:13,266 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:40:13,266 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:12" (2/3) ... [2018-11-28 12:40:13,266 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b247ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:40:13, skipping insertion in model container [2018-11-28 12:40:13,267 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:40:13,267 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:40:13" (3/3) ... [2018-11-28 12:40:13,268 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product40_true-unreach-call_false-termination.cil.c [2018-11-28 12:40:13,314 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:40:13,315 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 12:40:13,315 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 12:40:13,315 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 12:40:13,315 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:40:13,315 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:40:13,315 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 12:40:13,315 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:40:13,315 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 12:40:13,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states. [2018-11-28 12:40:13,343 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2018-11-28 12:40:13,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:40:13,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:40:13,349 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:13,349 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:13,350 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 12:40:13,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states. [2018-11-28 12:40:13,355 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2018-11-28 12:40:13,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:40:13,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:40:13,356 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:13,356 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:13,359 INFO L794 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(21);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(30);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(9);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(25);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 11#L-1true havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 7#L877true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 33#L885true main_#t~ret62 := valid_product_#res;main_~tmp~8 := main_#t~ret62;havoc main_#t~ret62; 53#L832true assume 0 != main_~tmp~8; 36#L805true ~switchedOnBeforeTS~0 := 0; 42#L703true havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 75#L724-1true [2018-11-28 12:40:13,360 INFO L796 eck$LassoCheckResult]: Loop: 75#L724-1true assume !false; 19#L271true assume test_~splverifierCounter~0 < 4; 112#L272true test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 121#L280true assume !(0 != test_~tmp~3); 120#L280-1true test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 45#L290true assume !(0 != test_~tmp___0~1); 43#L290-1true test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 102#L300true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 99#L308-1true havoc __utac_acc__Specification5_spec__2_#t~ret59;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 66#L174true __utac_acc__Specification5_spec__2_#t~ret59 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret59;havoc __utac_acc__Specification5_spec__2_#t~ret59; 74#L713true assume !(0 != ~pumpRunning~0); 116#L63true assume !(0 != ~systemActive~0); 25#L70true havoc __utac_acc__Specification5_spec__3_#t~ret60, __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 17#L965true __utac_acc__Specification5_spec__3_#t~ret60 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret60;havoc __utac_acc__Specification5_spec__3_#t~ret60; 73#L724true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 75#L724-1true [2018-11-28 12:40:13,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:13,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-11-28 12:40:13,366 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:13,367 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:13,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:13,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:13,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:13,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:13,547 INFO L82 PathProgramCache]: Analyzing trace with hash 676826806, now seen corresponding path program 1 times [2018-11-28 12:40:13,547 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:13,548 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:13,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:13,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:13,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:13,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:40:13,591 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:40:13,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:40:13,594 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 12:40:13,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:40:13,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:40:13,605 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 3 states. [2018-11-28 12:40:13,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:13,672 INFO L93 Difference]: Finished difference Result 231 states and 335 transitions. [2018-11-28 12:40:13,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:40:13,674 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 335 transitions. [2018-11-28 12:40:13,679 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 150 [2018-11-28 12:40:13,684 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 217 states and 320 transitions. [2018-11-28 12:40:13,684 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 217 [2018-11-28 12:40:13,685 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 217 [2018-11-28 12:40:13,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 217 states and 320 transitions. [2018-11-28 12:40:13,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:40:13,687 INFO L705 BuchiCegarLoop]: Abstraction has 217 states and 320 transitions. [2018-11-28 12:40:13,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states and 320 transitions. [2018-11-28 12:40:13,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 215. [2018-11-28 12:40:13,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2018-11-28 12:40:13,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 317 transitions. [2018-11-28 12:40:13,721 INFO L728 BuchiCegarLoop]: Abstraction has 215 states and 317 transitions. [2018-11-28 12:40:13,721 INFO L608 BuchiCegarLoop]: Abstraction has 215 states and 317 transitions. [2018-11-28 12:40:13,721 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 12:40:13,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 317 transitions. [2018-11-28 12:40:13,723 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2018-11-28 12:40:13,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:40:13,723 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:40:13,724 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:13,724 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:13,724 INFO L794 eck$LassoCheckResult]: Stem: 480#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(21);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(30);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(9);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(25);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 378#L-1 havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 368#L877 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 369#L885 main_#t~ret62 := valid_product_#res;main_~tmp~8 := main_#t~ret62;havoc main_#t~ret62; 414#L832 assume 0 != main_~tmp~8; 417#L805 ~switchedOnBeforeTS~0 := 0; 418#L703 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 424#L724-1 [2018-11-28 12:40:13,724 INFO L796 eck$LassoCheckResult]: Loop: 424#L724-1 assume !false; 514#L271 assume test_~splverifierCounter~0 < 4; 515#L272 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 556#L280 assume !(0 != test_~tmp~3); 554#L280-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 553#L290 assume !(0 != test_~tmp___0~1); 551#L290-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 550#L300 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 482#L308-1 havoc __utac_acc__Specification5_spec__2_#t~ret59;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 548#L174 __utac_acc__Specification5_spec__2_#t~ret59 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret59;havoc __utac_acc__Specification5_spec__2_#t~ret59; 546#L713 assume !(0 != ~pumpRunning~0); 544#L63 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 542#L121 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 530#L95-1 assume !(0 == ~pumpRunning~0); 528#L70 havoc __utac_acc__Specification5_spec__3_#t~ret60, __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 527#L965 __utac_acc__Specification5_spec__3_#t~ret60 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret60;havoc __utac_acc__Specification5_spec__3_#t~ret60; 521#L724 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 424#L724-1 [2018-11-28 12:40:13,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:13,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-11-28 12:40:13,724 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:13,725 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:13,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:13,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:13,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:13,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:13,784 INFO L82 PathProgramCache]: Analyzing trace with hash -549788339, now seen corresponding path program 1 times [2018-11-28 12:40:13,784 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:13,784 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:13,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:13,785 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:40:13,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:13,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:40:13,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:40:13,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:40:13,811 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 12:40:13,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:40:13,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:40:13,811 INFO L87 Difference]: Start difference. First operand 215 states and 317 transitions. cyclomatic complexity: 105 Second operand 3 states. [2018-11-28 12:40:13,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:13,918 INFO L93 Difference]: Finished difference Result 314 states and 439 transitions. [2018-11-28 12:40:13,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:40:13,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 314 states and 439 transitions. [2018-11-28 12:40:13,921 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2018-11-28 12:40:13,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 314 states to 314 states and 439 transitions. [2018-11-28 12:40:13,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 314 [2018-11-28 12:40:13,924 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 314 [2018-11-28 12:40:13,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 314 states and 439 transitions. [2018-11-28 12:40:13,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:40:13,926 INFO L705 BuchiCegarLoop]: Abstraction has 314 states and 439 transitions. [2018-11-28 12:40:13,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states and 439 transitions. [2018-11-28 12:40:13,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2018-11-28 12:40:13,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2018-11-28 12:40:13,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 439 transitions. [2018-11-28 12:40:13,939 INFO L728 BuchiCegarLoop]: Abstraction has 314 states and 439 transitions. [2018-11-28 12:40:13,939 INFO L608 BuchiCegarLoop]: Abstraction has 314 states and 439 transitions. [2018-11-28 12:40:13,939 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 12:40:13,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 314 states and 439 transitions. [2018-11-28 12:40:13,941 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2018-11-28 12:40:13,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:40:13,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:40:13,942 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:13,942 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:13,942 INFO L794 eck$LassoCheckResult]: Stem: 1024#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(21);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(30);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(9);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(25);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 912#L-1 havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 903#L877 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 904#L885 main_#t~ret62 := valid_product_#res;main_~tmp~8 := main_#t~ret62;havoc main_#t~ret62; 950#L832 assume 0 != main_~tmp~8; 953#L805 ~switchedOnBeforeTS~0 := 0; 954#L703 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 960#L724-1 [2018-11-28 12:40:13,943 INFO L796 eck$LassoCheckResult]: Loop: 960#L724-1 assume !false; 1094#L271 assume test_~splverifierCounter~0 < 4; 1057#L272 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 1058#L280 assume !(0 != test_~tmp~3); 1052#L280-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 1053#L290 assume !(0 != test_~tmp___0~1); 1047#L290-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 1048#L300 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1021#L308-1 havoc __utac_acc__Specification5_spec__2_#t~ret59;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 991#L174 __utac_acc__Specification5_spec__2_#t~ret59 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret59;havoc __utac_acc__Specification5_spec__2_#t~ret59; 992#L713 assume !(0 != ~pumpRunning~0); 1002#L63 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1037#L121 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1112#L95-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1111#L973-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1110#L978-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 1109#L223-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 996#L223-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 994#L229-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 995#L99-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 946#L70 havoc __utac_acc__Specification5_spec__3_#t~ret60, __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 1066#L965 __utac_acc__Specification5_spec__3_#t~ret60 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret60;havoc __utac_acc__Specification5_spec__3_#t~ret60; 1062#L724 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 960#L724-1 [2018-11-28 12:40:13,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:13,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2018-11-28 12:40:13,943 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:13,943 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:13,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:13,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:13,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:13,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:13,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1721068121, now seen corresponding path program 1 times [2018-11-28 12:40:13,992 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:13,993 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:13,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:13,993 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:40:13,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:40:14,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:40:14,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:40:14,049 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 12:40:14,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:40:14,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:40:14,050 INFO L87 Difference]: Start difference. First operand 314 states and 439 transitions. cyclomatic complexity: 128 Second operand 5 states. [2018-11-28 12:40:14,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:14,291 INFO L93 Difference]: Finished difference Result 1319 states and 1859 transitions. [2018-11-28 12:40:14,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:40:14,292 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1319 states and 1859 transitions. [2018-11-28 12:40:14,302 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 926 [2018-11-28 12:40:14,309 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1319 states to 1319 states and 1859 transitions. [2018-11-28 12:40:14,309 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1319 [2018-11-28 12:40:14,311 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1319 [2018-11-28 12:40:14,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1319 states and 1859 transitions. [2018-11-28 12:40:14,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:40:14,315 INFO L705 BuchiCegarLoop]: Abstraction has 1319 states and 1859 transitions. [2018-11-28 12:40:14,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states and 1859 transitions. [2018-11-28 12:40:14,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 615. [2018-11-28 12:40:14,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2018-11-28 12:40:14,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 847 transitions. [2018-11-28 12:40:14,334 INFO L728 BuchiCegarLoop]: Abstraction has 615 states and 847 transitions. [2018-11-28 12:40:14,335 INFO L608 BuchiCegarLoop]: Abstraction has 615 states and 847 transitions. [2018-11-28 12:40:14,335 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 12:40:14,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 615 states and 847 transitions. [2018-11-28 12:40:14,338 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 442 [2018-11-28 12:40:14,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:40:14,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:40:14,339 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:14,339 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:14,339 INFO L794 eck$LassoCheckResult]: Stem: 2683#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(21);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(30);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(9);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(25);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 2567#L-1 havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 2555#L877 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 2556#L885 main_#t~ret62 := valid_product_#res;main_~tmp~8 := main_#t~ret62;havoc main_#t~ret62; 2608#L832 assume 0 != main_~tmp~8; 2612#L805 ~switchedOnBeforeTS~0 := 0; 2613#L703 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2591#L724-1 [2018-11-28 12:40:14,340 INFO L796 eck$LassoCheckResult]: Loop: 2591#L724-1 assume !false; 2664#L271 assume test_~splverifierCounter~0 < 4; 3022#L272 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 3018#L280 assume !(0 != test_~tmp~3); 3012#L280-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 3055#L290 assume !(0 != test_~tmp___0~1); 3050#L290-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 2685#L300 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2684#L308-1 havoc __utac_acc__Specification5_spec__2_#t~ret59;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2652#L174 __utac_acc__Specification5_spec__2_#t~ret59 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret59;havoc __utac_acc__Specification5_spec__2_#t~ret59; 2653#L713 assume !(0 != ~pumpRunning~0); 2662#L63 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 2690#L121 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 2562#L95-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 2563#L973-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 2597#L978-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 3028#L223-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 3024#L223-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2654#L229-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 2655#L99-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 2592#L70 havoc __utac_acc__Specification5_spec__3_#t~ret60, __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 2593#L965 __utac_acc__Specification5_spec__3_#t~ret60 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret60;havoc __utac_acc__Specification5_spec__3_#t~ret60; 2660#L724 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2661#L174-1 __utac_acc__Specification5_spec__3_#t~ret61 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret61;havoc __utac_acc__Specification5_spec__3_#t~ret61; 2589#L728 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 2591#L724-1 [2018-11-28 12:40:14,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:14,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2018-11-28 12:40:14,340 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:14,340 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:14,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:14,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:14,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:14,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:14,383 INFO L82 PathProgramCache]: Analyzing trace with hash 384043252, now seen corresponding path program 1 times [2018-11-28 12:40:14,383 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:14,383 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:14,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:14,384 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:40:14,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:14,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:14,395 INFO L82 PathProgramCache]: Analyzing trace with hash 320617070, now seen corresponding path program 1 times [2018-11-28 12:40:14,395 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:14,395 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:14,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:14,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:14,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:14,554 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2018-11-28 12:40:19,864 WARN L180 SmtUtils]: Spent 5.23 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-11-28 12:40:22,446 WARN L180 SmtUtils]: Spent 2.58 s on a formula simplification that was a NOOP. DAG size: 425 [2018-11-28 12:40:22,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 12:40:22 BoogieIcfgContainer [2018-11-28 12:40:22,485 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 12:40:22,485 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:40:22,486 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:40:22,486 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:40:22,486 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:40:13" (3/4) ... [2018-11-28 12:40:22,489 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 12:40:22,548 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_11d1d7e9-c2e8-4d92-8791-f999d865c7bb/bin-2019/uautomizer/witness.graphml [2018-11-28 12:40:22,548 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:40:22,548 INFO L168 Benchmark]: Toolchain (without parser) took 10331.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.8 MB). Free memory was 950.6 MB in the beginning and 1.2 GB in the end (delta: -209.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:40:22,549 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:40:22,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:22,550 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:22,550 INFO L168 Benchmark]: Boogie Preprocessor took 29.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:22,550 INFO L168 Benchmark]: RCFGBuilder took 587.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 63.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:22,551 INFO L168 Benchmark]: BuchiAutomizer took 9224.60 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -128.8 MB). Peak memory consumption was 246.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:22,551 INFO L168 Benchmark]: Witness Printer took 62.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:22,554 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 376.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 587.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 63.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 9224.60 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -128.8 MB). Peak memory consumption was 246.2 MB. Max. memory is 11.5 GB. * Witness Printer took 62.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 615 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 8.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 706 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 615 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 615 SDtfs, 1011 SDslu, 1003 SDs, 0 SdLazy, 178 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 270]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, NULL=0, NULL=20, NULL=35, NULL=0, retValue_acc=1, NULL=34, NULL=23, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=18, methaneLevelCritical=0, NULL=31, tmp=1, tmp___0=0, tmp=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73781c2c=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=19, NULL=8, NULL=17, \result=0, NULL=14, NULL=0, systemActive=1, waterLevel=1, NULL=12, \result=1, NULL=0, NULL=0, NULL=16, \result=0, NULL=0, NULL=24, NULL=29, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=33, \result=1, NULL=22, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6664469f=0, \result=0, NULL=38, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18a650dd=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@245e651e=56, \result=1, NULL=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@734f2979=0, retValue_acc=1, NULL=0, NULL=0, tmp=1, tmp___2=56, retValue_acc=1, tmp___0=0, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1767c568=0, NULL=27, NULL=39, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b7a710b=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d0fe5e7=0, head=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ca2e5fb=0, NULL=26, NULL=28, NULL=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48f20d3b=0, NULL=37, NULL=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f06313f=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L498] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L697] int switchedOnBeforeTS ; [L746] int cleanupTimeShifts = 4; [L890] int waterLevel = 1; [L891] int methaneLevelCritical = 0; [L823] int retValue_acc ; [L824] int tmp ; [L881] int retValue_acc ; [L884] retValue_acc = 1 [L885] return (retValue_acc); [L830] tmp = valid_product() [L832] COND TRUE \read(tmp) [L702] switchedOnBeforeTS = 0 [L261] int splverifierCounter ; [L262] int tmp ; [L263] int tmp___0 ; [L264] int tmp___1 ; [L265] int tmp___2 ; [L268] splverifierCounter = 0 Loop: [L270] COND TRUE 1 [L272] COND TRUE splverifierCounter < 4 [L278] tmp = __VERIFIER_nondet_int() [L280] COND FALSE !(\read(tmp)) [L288] tmp___0 = __VERIFIER_nondet_int() [L290] COND FALSE !(\read(tmp___0)) [L298] tmp___2 = __VERIFIER_nondet_int() [L300] COND TRUE \read(tmp___2) [L252] systemActive = 1 [L170] int retValue_acc ; [L173] retValue_acc = pumpRunning [L174] return (retValue_acc); [L711] switchedOnBeforeTS = isPumpRunning() [L63] COND FALSE !(\read(pumpRunning)) [L70] COND TRUE \read(systemActive) [L118] int tmp ; [L121] COND FALSE !(\read(pumpRunning)) [L92] int tmp ; [L95] COND TRUE ! pumpRunning [L215] int retValue_acc ; [L216] int tmp ; [L217] int tmp___0 ; [L970] int retValue_acc ; [L973] COND TRUE waterLevel < 2 [L974] retValue_acc = 1 [L975] return (retValue_acc); [L221] tmp = isHighWaterSensorDry() [L223] COND TRUE \read(tmp) [L224] tmp___0 = 0 [L228] retValue_acc = tmp___0 [L229] return (retValue_acc); [L97] tmp = isHighWaterLevel() [L99] COND FALSE !(\read(tmp)) [L717] int tmp ; [L718] int tmp___0 ; [L961] int retValue_acc ; [L964] retValue_acc = waterLevel [L965] return (retValue_acc); [L722] tmp = getWaterLevel() [L724] COND TRUE tmp != 2 [L170] int retValue_acc ; [L173] retValue_acc = pumpRunning [L174] return (retValue_acc); [L726] tmp___0 = isPumpRunning() [L728] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...